The Teton Flood Museum occupies the basement of the old Rexburg Tabernacle, a handsome red-brick building on the main square. The exhibits are well put together and unsentimental — this is not a disaster theme park but a serious attempt to document what happened, who was affected, and how the community responded. The photographic record of the flood is extraordinary: images of houses floating down main street, of volunteers in the mud, of a town rebuilding itself from scratch in the months that followed.
If you have any interest in 20th-century American history, in the culture of the LDS church, or simply in the strange power of natural disaster to reveal character, this museum is worth an hour of your time. Admission is modest and the staff are knowledgeable. The tabernacle building itself, dating from the early 20th century, is worth a look for its architecture alone — it survived the flood, which adds a certain weight to standing inside it.