Phnom Penh

Phnom Penh sits at the confluence of three rivers — the Mekong, the Tonle Sap, and the Bassac — and is Cambodia's capital with a population of about 2 million. From 1863 to 1953 it was the administrative seat of French Indochina, and the colonial era nickname "Pearl of Asia" still describes the older quarters — wide tree-lined boulevards, yellow-ochre villas, and the Art Deco Central Market (1937). Honest assessment: as a standalone city, Phnom Penh has fewer single-city attractions than Siem Reap (Angkor Wat), Sihanoukville (beaches), or Kampot (pepper farms and the seaside). 2 nights is the sweet spot. But for anyone tracing Cambodia's modern history, Phnom Penh is unmissable — the Royal Palace, the Killing Fields, and S-21 condense more 20th-century weight into one walkable city than almost anywhere else in Southeast Asia.

The Royal Palace and Silver Pagoda are the obvious first stop. Built in 1866 when King Norodom moved the capital here from Oudong, the palace complex is still the Cambodian royal family's residence — King Norodom Sihamoni lives in the inner compound, which is why parts of the site close for state functions. The Silver Pagoda (Wat Preah Keo Morakot) on the south side of the compound has 5,329 solid-silver floor tiles (1.125 kg each), a 17th-century Baccarat crystal Emerald Buddha, and a 90 kg gold Buddha encrusted with 9,584 diamonds (the largest 25 carats). Foreigner ticket $10, open 8:00-11:00 + 14:00-17:00 daily, shoulders + knees covered (no rental — bring a scarf). Photos allowed in the courtyards but not inside the buildings.

The Killing Fields (Choeung Ek Genocidal Center) and Tuol Sleng (S-21) are the heart of any Phnom Penh stay and the reason most travelers come at all. Between April 1975 and January 1979, the Khmer Rouge regime under Pol Pot killed approximately 1.7-2 million Cambodians — roughly a quarter of the entire population — in less than four years. Choeung Ek, 17 km south of the city, was the largest mass-execution site, with about 17,000 people killed and buried in 129 mass graves (about 9,000 remains have been recovered); the memorial stupa at the center holds 8,000 skulls in glass tiers organized by age and gender. Entry $6 plus $3 audio guide (English, Khmer, and other languages available). S-21 was the Khmer Rouge's main secret prison — a former high school in central Phnom Penh that was converted into an interrogation and torture center where roughly 17,000 prisoners passed through and only 7 are known to have survived. The four cell blocks, torture instruments, and prisoner mugshots are preserved as found. Entry $5 plus $3 audio guide. Both are emotionally heavy; bring water, allow the full 90-minute audio loop, and consider visiting on different days to avoid stacking trauma. Many travelers say S-21 is the harder of the two — the Killing Fields is more about quiet memorial space; S-21 is the actual rooms where people died.

The National Museum of Cambodia (1920) is a red-sandstone French-colonial building immediately north of the Royal Palace, designed by George Groslier. Inside is the world's best collection of Khmer art — 1,800+ Angkor-era sculptures, ceramics, and bronzes from the 4th-14th centuries. If you are continuing to Siem Reap, this is the canonical pre-Angkor briefing; if you aren't, the carvings of Vishnu, Shiva, and apsara dancers still warrant 60-90 minutes. Foreigner $10, audio guide $5, open 8:00-17:00. Wat Phnom (1372) is the temple-on-a-hill from which the city takes its name — a 27 m artificial mound built by a wealthy widow named Penh to house four Buddha statues she pulled from the Mekong. Free observation at the base, $1 to climb to the temple.

Markets and shopping center on two iconic sites. The Central Market (Phsar Thmey, 1937) is the city's most photogenic building — a yellow-ochre Art Deco dome 26 m high with four cruciform wings, designed by French architect Jean Desbois, and one of the largest Art Deco structures in Asia. Inside: jewelry (mixed real and fake — only buy from established stalls if you know stones), silk scarves $3-10, souvenirs, watches (fake — skip), electronics (fake — skip), flowers, fruit, and seafood. The Russian Market (Phsar Toul Tum Poung), 15 minutes south of BKK1, gets its name from Soviet diplomats who shopped here in the 1980s — today it's the better market for vintage clothes, factory-overrun-style apparel (the genuine garment-factory stuff sold cheap), souvenirs, and silk. Start any haggle at about 50% of the opening price.

Food in Phnom Penh has more depth than most visitors expect. The Cambodian national dish, Fish Amok ($5-12 — coconut-curry steamed fish in banana leaf), is on every menu but is genuinely best at Malis (BKK1, modern fine-dining Cambodian by chef Luu Meng, $15-30 mains) or Cuisine Wat Damnak (the Phnom Penh branch of the Siem Reap Asia 50 Best restaurant, 6-course tasting $30-50). Lok Lak ($4-8 — beef cubes with black pepper, lime, fried egg over rice) is the second canonical Cambodian dish. For social-impact dining, Romdeng (BKK1, $15-25) and Friends Restaurant (Street 13, $8-20) are NGO-run training restaurants for former street kids — proceeds fund the education program and the menus mix traditional and modern Cambodian (Romdeng's signature is a tarantula and beef salad if you're brave). The colonial-heritage dinner choice is Khema La Poste (Daun Penh, restored 1890 central post office, French-Cambodian fusion $20-40) or FCC (Foreign Correspondents' Club, 1900 villa, Mekong-view balcony, the location of the journalist scenes in the 1984 film The Killing Fields). Street-food staples: Bai Sach Chrouk ($2-3 — grilled pork over broken rice for breakfast, best at BKK1 Street 51 and Street 240 stalls 5:30-9:00), Cambodian-style Rolex ($1 burrito of egg-and-meat in a wrap), and noodle soup ($1.50-3 in the Russian Market food court).

Cafes and bars cluster in BKK1 (Boeung Keng Kang 1), the city's expat district. Brown Coffee is Cambodia's largest home-grown chain with 30+ locations — fast WiFi, power outlets, $2.50-4 drinks. The Common Tiger and Naked Espresso are the specialty-coffee benchmarks; Le Boutier is the city's only proper French bakery. For sunset and rooftops, Top Banana Sky Bar (BKK1, 11F, $4-7 cocktails) is the budget-friendly classic; Rosewood Sora Sky Bar (Vattanac Tower 37F, $10-15 cocktails) is the upscale alternative with the only true high-rise vantage in Phnom Penh. The Mekong waterfront on Sisowath Quay is the city's nightly stroll between roughly 17:00 and 21:00 — colonial villas (FCC, Khema La Poste, Le Royal hotel) line the street, sunset over the river is at 17:30-18:15 in cool season, and the weekend night market (Phsar Reatrey, Fri-Sun 18:00-22:00) sets up at the north end with cheap food, T-shirts, and silk scarves.

Getting here: the easiest direct connections are Bangkok (1h25), Singapore (2h), Kuala Lumpur (2h), Ho Chi Minh City (1h), and Hong Kong (2h45). Seoul is the longest direct route from East Asia at 5h30. From the US, Europe, or Australia, you connect via Singapore, Hong Kong, Bangkok, or Doha — total flying time is 18-25 hours. PNH Phnom Penh International Airport is 10 km west of the city center, 20 minutes by PassApp ride-hail ($7-10) or tuk-tuk (negotiate $7-10) or fixed-price airport taxi ($15-20). Cambodia visa policy: e-Visa $36 (30 days, online 3-5 working days at evisa.gov.kh) is easier; visa on arrival $30 cash with 1 photo is still available at PNH. Inside the country: PassApp is the local equivalent of Grab and works reliably across Phnom Penh — $1-3 for any city ride, $7-10 to the airport, $10-15 to Choeung Ek Killing Fields. Street tuk-tuks have no meters; always agree the price in USD before getting in. Siem Reap is 1 hour by domestic flight ($80-200 each way on Cambodia Angkor Air or JC International) or 6 hours by Giant Ibis VIP bus ($15-25); Sihanoukville is 30 minutes by flight ($60-120) or 5 hours by bus ($10-15).

Money is the unusual part. Cambodia uses the US dollar as its primary daily currency — prices are quoted in USD, ATMs dispense USD bills, and you'll spend USD for almost everything. The Cambodian Riel (KHR, 1 USD ≈ 4,100 KHR) is used only for change under $1. Bring USD cash in clean $5, $10, and $20 notes (some restaurants and tuk-tuks refuse torn or heavily marked bills); the best ATMs are ABA Bank, ACLEDA, and Canadia ($4-5 per withdrawal, dispense USD in new notes). Avoid street money changers and small unmarked exchange booths near the Central Market — there are repeated reports of counterfeit and shortchanging. Credit cards work only at 4-5 star hotels, mid-range and upscale restaurants, and large supermarkets — assume cash for everything else.

Honest trade-offs: First, as noted, single-city attractions are fewer than Siem Reap or coastal Cambodia — 2 nights is plenty; 3+ nights only makes sense if you're using Phnom Penh as a base for Oudong, Kampot, or river-cruise connections to Ho Chi Minh City. Second, the Killing Fields and S-21 are genuinely traumatic museums; travelers with PTSD or recent grief should think carefully, and bringing kids under 14 is strongly discouraged. Third, traffic congestion has worsened sharply in the last decade — central intersections often have no working signals, and crossing the road takes nerve. Fourth, some outer-southern areas and isolated stretches of the riverside have nighttime petty-crime reports (motorbike bag snatches, mostly); use PassApp after dark and keep phones out of sight. Fifth, the June-October rainy season brings hour-long afternoon downpours and street flooding — November to February is the only really comfortable window.

Bottom line: Phnom Penh works best as a focused 2-night history-and-colonial stop on a wider Cambodia loop. The pairing that's genuinely worth booking: Phnom Penh 2 nights + Siem Reap 3 nights + (optional) Koh Rong / Sihanoukville 2 nights or Kampot 1 night = 5-9 days. Treat the city as serious-history capital with great food and a Mekong sunset, not as a beach holiday or temple capital, and the experience overdelivers on what most first-timers expect.