Silom/Bang Rak For those looking to blend the Bangkok of old with the 21st century, Silom offers a bit of both worlds. Silom is the city’s busiest business district and offers easy access to the BTS, MRT and the Chao Phraya. Between the high rises, there is charm to be found: old storefronts and traditional markets still stand. Several luxury hotels line the river in an area called Bang Rak. Further inland, you’ll run into Lumphini Park, Bangkok’s nicest green space.