You can cross the viaduct and come back the same day. Take the Lashio bound train at 08:22to Naung Paing (700/1,600 kyat ordinary/upper class), the first stop after the viaduct. You will arrive there around 11:50. Get out and take the Mandalay-bound train at 12:30. At around 10:30 the train will stop in Naung Che (Naung Hkio) for about 10 min. This is the stop just before Gokteik and your chance to buy lunch: Rice and chicken in banana leaf is sold on the platform by a couple of ladies. Make sure to tell the conductor that you want to cross the viaduct and take the train back to Pyin U Lwin. Sometimes the train delays and has to wait at Gokteik station (before crossing the viaduct) for the train from Lashio. This means you can't cross the bridge without missing your return train. They will then tell you to change the train there at Gokteik station. Although you are not able to cross the viaduct by train, you can still watch the other train doing so and best of all: you can walk on the viaduct and photograph the spectacular scenery. The local officers will guide your way and take care of your safety.
Now the Thiri Myaing Hotel
Colonial mansion built as a guest house of The Bombay Burmah Trading Corporation in 1904. Made famous by Paul Theroux in The Great Railway Bazaar, it is a good place to stop and see how the colonials lived. But, be aware that the house and hotel are now owned by the government. Other colonial houses remade into government run hotels include The Croxton and Craddock Court.
A large and colourful Chinese temple built by the many Yunanese immigrants to the town.
Maymyo Christian Cemetery
The cemetery is in very poor condition having been "nationalized" by the junta and most of the headstones are in disrepair with unreadable inscriptions. Still, a few survive and will be worth the time spent if you are a history buff. St James Church, once Anglican but now Catholic, lies across the road. Drop in and see the plaques to the various British lives lost in various wars. The friendly chaplain will show you around. Take a bike or a horse carriage since the cemetery is quite far.
Established in 1915 by Alex Rodger as the Maymyo Botanical Gardens, the garden has a rich and diverse collection of flora, including many English plant varieties, and is without a doubt among the most beautiful botanical gardens in the world. A rose garden, a stupa in the middle of a pond and an orchid garden are among the highlights. Seeds are available for sale. A popular spot for locals. Open from 08:00 to 18:00.
The clock in this tower is reputed to mime the chimes of Big Ben (or so says Lonely Planet).
Hindu temple to the god Shiva.